CN117956409A

CN117956409A - Multicast broadcast service transmission method and device, terminal equipment and network equipment

Info

Publication number: CN117956409A
Application number: CN202211292608.7A
Authority: CN
Inventors: 王化磊
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2024-04-30
Also published as: WO2024083029A1

Abstract

The application discloses a multicast broadcast service transmission method and device, terminal equipment and network equipment, and relates to the technical field of communication; the method comprises the following steps: the network equipment sends first information, wherein the first information comprises information related to multicast broadcast service MBS broadcast supported by first-class terminal equipment; the maximum bandwidth supported by the first type of terminal equipment is 20MHz; the terminal equipment receives the first information; the network equipment sends MBS broadcasting according to the first information; and the terminal equipment receives the MBS broadcast according to the first information. Thus, after receiving the first information, the first type of terminal equipment can perform MBS broadcast transmission according to the first information, thereby enhancing MBS transmission through the first information and improving compatibility and stability of network transmission.

Description

Multicast broadcast service transmission method and device, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting a multicast broadcast service, a terminal device, and a network device.

Background

The standard protocol specified by the third generation partnership project organization (3rd Generation Partnership Project,3GPP) introduced Multicast Broadcast Service (MBS).

MBS may include MBS broadcast (MBS broadcast) and MBS multicast (MBS multicast). Wherein, the MBS broadcast is understood to be transmitted in a broadcast mode; MBS multicasting, it is understood that MBS is transmitted in multicast or multicast.

For MBS broadcasting, regardless of the radio resource control (Radio Resource Control, RRC) state the terminal device is in, the terminal device with the capability to receive MBS broadcasting may or may not have valid versions of system information (system information, SI), such as system information block 20 (system information block, SIBs 20) and SIB21, etc.

Currently, for MBS broadcasting, the frequency domain resource of MBS broadcasting may be configured by CFR-ConfigMCCH-MTCH information carried by SIB20, and the frequency domain resource of MBS broadcasting may also be referred to as common frequency resource (common frequency resource, CFR) for MBS control channel (MBS control channel, MCCH) reception and MBS traffic channel (MBS TRAFFIC CHANNEL, MTCH) reception.

However, when the current standard protocol discusses configuring the frequency domain resources of MBS broadcasting, a certain difference is not considered in the capability of different types of terminal devices, so that there is a type of frequency domain resources of MBS broadcasting that may not be supported by the terminal devices configured by cfr-ConfigMCCH-MTCH information in SIB20, and thus such terminal devices cannot receive MBS broadcasting. In this regard, no specific solution exists at present for how such terminal devices enhance the transmission of MBS broadcasts, and thus further research is needed.

Disclosure of Invention

The application provides a multicast broadcast service transmission method and device, terminal equipment and network equipment, which aim to solve the problem of how to enhance MBS transmission aiming at the terminal equipment, improve the flexibility and operability of uplink power control and ensure the uplink transmission performance and reliability.

In a first aspect, the present application is a multicast broadcast service transmission method, including:

receiving first information, wherein the first information comprises information related to multicast broadcast service MBS broadcast supported by first-class terminal equipment; the maximum bandwidth supported by the first type of terminal equipment is 20MHz;

And receiving MBS broadcasting according to the first information.

It can be seen that, in order to ensure that the first type of terminal device can perform MBS broadcast transmission, the embodiment of the present application introduces first information for the first type of terminal device, where the first information may include information related to MBS broadcast supported by the first type of terminal device, and sends the first information to the first type of terminal device through the network device.

Thus, after receiving the first information, the first type terminal equipment can perform MBS broadcast transmission according to the first information, thereby enhancing MBS transmission through the first information and improving compatibility and stability of network transmission.

In a second aspect, the present application is a multicast broadcast service transmission method, including:

transmitting first information, wherein the first information comprises information related to multicast broadcast service MBS broadcast supported by first-class terminal equipment; the maximum bandwidth supported by the first type of terminal equipment is 20MHz;

and transmitting MBS broadcasting according to the first information.

In a third aspect, the present application is a multicast broadcast service transmission apparatus, including:

A receiving unit, configured to receive first information, where the first information includes information related to MBS broadcasting of a multicast broadcast service supported by a first type of terminal equipment; the maximum bandwidth supported by the first type of terminal equipment is 20MHz;

The receiving unit is further configured to receive MBS broadcast according to the first information.

A fourth aspect is a multicast broadcast service transmission apparatus of the present application, including:

a sending unit, configured to send first information, where the first information includes information related to MBS broadcast supported by a first type of terminal device; the maximum bandwidth supported by the first type of terminal equipment is 20MHz;

The sending unit is further configured to send MBS broadcast according to the first information.

In a fifth aspect, the steps in the method as designed in the first aspect are applied to a terminal device or a terminal device.

In a sixth aspect, the steps in the method according to the second aspect are applied in a network device or a network device.

A seventh aspect is a terminal device according to the present application, comprising a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect.

An eighth aspect is a network device according to the present application, including a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps in the method designed in the second aspect.

A ninth aspect is a chip of the present application, comprising a processor and a communication interface, wherein the processor performs the steps in the method designed in the first aspect or the second aspect.

In a tenth aspect, the present application is a chip module, including a transceiver component and a chip, where the chip includes a processor, and the processor executes the steps in the method designed in the first aspect or the second aspect.

An eleventh aspect is a computer readable storage medium of the present application, in which a computer program or instructions are stored which, when executed, implement the steps in the method devised in the first or second aspect described above. For example, the computer program or instructions are executed by a processor.

A twelfth aspect is a computer program product according to the application, comprising a computer program or instructions which, when executed, implement the steps of the method according to the first or second aspect. For example, the computer program or instructions are executed by a processor.

A thirteenth aspect is a communication system of the present application, including the terminal device in the seventh aspect and the network device in the eighth aspect.

The technical effects of the second to thirteenth aspects may be seen by the technical effects of the first aspect, and are not described here again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application;

fig. 2 is a flow chart of a multicast broadcast service transmission method according to an embodiment of the present application;

fig. 3 is a functional unit block diagram of a multicast broadcast service transmission apparatus according to an embodiment of the present application;

fig. 4 is a functional unit block diagram of a multicast broadcast service transmission apparatus according to still another embodiment of the present application;

Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

It should be understood that the terms "first," "second," and the like, as used in embodiments of the present application, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, software, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the embodiment of the application, "and/or" describes the association relation of the association objects, which means that three relations can exist. For example, a and/or B may represent three cases: a alone; both A and B are present; b alone. Wherein A, B may be singular or plural.

In the embodiment of the present application, the symbol "/" may indicate that the associated object is an or relationship. In addition, the symbol "/" may also denote a divisor, i.e. performing a division operation. For example, A/B may represent A divided by B.

"At least one" or the like in the embodiments of the present application means any combination of these items, including any combination of single item(s) or plural items(s), meaning one or more, and plural means two or more. For example, at least one (one) of a, b or c may represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b and c. Wherein each of a, b, c may be an element or a set comprising one or more elements.

The 'equal' in the embodiment of the application can be used with the greater than the adopted technical scheme, can also be used with the lesser than the adopted technical scheme. When the combination is equal to or greater than the combination, the combination is not less than the combination; when the value is equal to or smaller than that used together, the value is not larger than that used together.

"Of", "corresponding (corresponding/relevant)", "corresponding (corresponding)", and "indicated (indicated)" referred to in the embodiments of the present application may be sometimes used in combination. It should be noted that the meaning of what is meant is consistent when de-emphasizing the differences.

The "configuration" in the embodiment of the present application may be expressed as the same concept as the "provision" or the like.

The "connection" in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way.

The "network" in the embodiment of the present application may be expressed as the same concept as the "system", i.e. the communication system is a communication network.

The following describes related content, concepts, meanings, technical problems, technical schemes, beneficial effects and the like related to the embodiment of the application.

1. Communication system, terminal device and network device

1. Communication system

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: general Packet Radio Service (GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced Long Term Evolution, LTE-a) system, new Radio (NR) system, evolved system of NR system, LTE-based Access to Unlicensed Spectrum on unlicensed spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum on unlicensed spectrum (NR-U) system, non-terrestrial communication network (Non-TERRESTRIAL NETWORKS, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (WIRELESS FIDELITY, wi-Fi), 6th Generation (6 th-Generation, 6G) communication system, or other communication system, etc.

It should be noted that, the number of connections supported by the conventional communication system is limited and easy to implement. However, with the development of communication technology, the communication system may support not only a conventional communication system, but also, for example, a device-to-device (D2D) communication, a machine-to-machine (machine to machine, M2M) communication, a machine type communication (MACHINE TYPE communication, MTC), an inter-vehicle (vehicle to vehicle, V2V) communication, an internet of vehicles (vehicle to everything, V2X) communication, a narrowband internet of things (narrow band internet of things, NB-IoT) communication, and the like, so the technical scheme of the embodiment of the present application may be applied to the above communication system.

In addition, the technical scheme of the embodiment of the application can be applied to beamforming (beamforming), carrier aggregation (carrier aggregation, CA), dual-connection (dual connectivity, DC) or independent (standalone, SA) deployment scenarios and the like.

In the embodiment of the present application, the frequency spectrum used for communication between the terminal device and the network device, or the frequency spectrum used for communication between the terminal device and the terminal device may be an authorized frequency spectrum or an unauthorized frequency spectrum, which is not limited. In addition, unlicensed spectrum may be understood as shared spectrum, and licensed spectrum may be understood as unshared spectrum.

Since the embodiments of the present application are described in connection with terminal devices and network devices, the terminal devices and network devices involved will be specifically described below.

2. Terminal equipment

The terminal device may be a device having a transceiving function, and may also be referred to as a terminal, a User Equipment (UE), a remote terminal device (remote UE), a relay UE, an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a mobile device, a user terminal device, an intelligent terminal device, a wireless communication device, a user agent, or a user equipment. The relay device is a terminal device capable of providing a relay service to other terminal devices (including a remote terminal device).

For example, the terminal device may be a mobile phone (mobile phone), a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned automatic driving, a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (SMART GRID), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (SMART CITY) or a wireless terminal device in smart home (smart home), or the like.

As another example, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a car-mounted device, a wearable device, a terminal device in a next generation communication system (e.g. NR communication system, 6G communication system) or a terminal device in a future evolved public land mobile communication network (public land mobile network, PLMN), etc., without being limited in particular.

In some possible implementations, the terminal device may be deployed on land, including indoors or outdoors, hand-held, wearable, or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); may be deployed in the air (e.g., aircraft, balloons, satellites, etc.).

In some possible implementations, the terminal device may include means for wireless communication functions, such as a chip system, a chip module. By way of example, the system-on-chip may include a chip, and may include other discrete devices.

3. Network equipment

The network device may be a device with a transceiver function, and is configured to communicate with the terminal device.

In some possible implementations, the network device may be responsible for air-side radio resource management (radio resource management, RRM), quality of service (quality of service, qoS) management, data compression and encryption, data transceiving, and so on.

In some possible implementations, the network device may be a Base Station (BS) in a communication system or a device deployed in a radio access network (radio access network, RAN) for providing wireless communication functions.

For example, the network device may be an evolved node B (evolutional node B, eNB or eNodeB) in the LTE communication system, a next generation evolved node B (next generation evolved node B, ng-eNB) in the NR communication system, a next generation node B (next generation node B, gNB) in the NR communication system, a Master Node (MN) in the dual connectivity architecture, a second node or Secondary Node (SN) in the dual connectivity architecture, or the like, without particular limitation.

In some possible implementations, the network device may also be a device in a Core Network (CN), such as an access and mobility management function (ACCESS AND mobility management function, AMF), a user plane function (user plane function, UPF), etc.; but also Access Points (APs) in WLAN, relay stations, communication devices in future evolved PLMN networks, communication devices in NTN networks, etc.

In some possible implementations, the network device may include a device, such as a system-on-chip, a chip module, having means to provide wireless communication functionality for the terminal device. The chip system may include a chip, or may include other discrete devices, for example.

In some possible implementations, the network device may communicate with an internet protocol (Internet Protocol, IP) network. Such as the internet, a private IP network or other data network, etc.

In some possible implementations, the network device may be one independent node to implement the functionality of the base station or the network device may include two or more independent nodes to implement the functionality of the base station. For example, network devices include centralized units (centralized unit, CUs) and Distributed Units (DUs), such as gNB-CUs and gNB-DUs. Further, in other embodiments of the present application, the network device may further include an active antenna unit (ACTIVE ANTENNA unit, AAU). Wherein a CU implements a portion of the functions of the network device and a DU implements another portion of the functions of the network device. For example, a CU is responsible for handling non-real-time protocols and services, implementing the functions of a radio resource control (radio resource control, RRC) layer, a service data adaptation (SERVICE DATA adaptation protocol, SDAP) layer, and a packet data convergence (PACKET DATA convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (medium access control, MAC) and Physical (PHY) layers. In addition, the AAU can realize partial physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become or be converted from the information of the PHY layer, in this network deployment, higher layer signaling (e.g., RRC signaling) may be considered to be generated by the CU, transmitted by the DU, or transmitted by both the DU and the AAU. It is understood that the network device may include at least one of CU, DU, AAU. In addition, the CU may be divided into network devices in the RAN, or may be divided into network devices in the core network, which is not particularly limited.

In some possible implementations, the network device may be any one of multiple sites that performs coherent cooperative transmission (coherent joint transmission, CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, which is not particularly limited. The multi-station coherent cooperative transmission may be a joint coherent transmission of multiple stations, or different data belonging to the same physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH) are sent from different stations to the terminal device, or multiple stations are virtualized into one station for transmission, and names with the same meaning specified in other standards are also applicable to the present application, i.e. the present application is not limited by the names of these parameters. Stations in the multi-station coherent cooperative transmission may be remote radio heads (Remote Radio Head, RRH), transmission receiving points (transmission and reception point, TRP), network devices, and the like, which are not particularly limited.

In some possible implementations, the network device may be any one of multiple sites that perform incoherent cooperative transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, which is not limited specifically. The multi-station incoherent cooperative transmission may be a multi-station joint incoherent transmission, or different data belonging to the same PDSCH are sent from different stations to the terminal device, and names with the same meaning specified in other standards are also applicable to the present application, i.e. the present application is not limited to the names of these parameters. The stations in the multi-station incoherent cooperative transmission may be RRHs, TRPs, network devices, etc., which are not particularly limited.

In some possible implementations, the network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (HIGH ELLIPTICAL orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In some possible implementations, the network device may serve a cell, and terminal devices in the cell may communicate with the network device over transmission resources (e.g., spectrum resources). The cell may be a macro cell (macro cell), a small cell (SMALL CELL), a urban cell (metro cell), a micro cell (micro cell), a pico cell (pico cell), a femto cell (femto cell), or the like.

4. Description of the examples

An exemplary description of a communication system according to an embodiment of the present application is provided below.

Exemplary, a network architecture of a communication system according to an embodiment of the present application may refer to fig. 1. As shown in fig. 1, communication system 10 may include a network device 110 and a terminal device 120. Network device 110 may communicate with terminal device 120.

Fig. 1 is merely an illustration of a network architecture of a communication system, and the network architecture of the communication system according to the embodiment of the present application is not limited thereto. For example, communication system 10 may also include a server or other device. As another example, communication system 10 may also include multiple network devices and/or multiple terminal devices.

2. MBS (methyl methacrylate-butadiene-styrene)

MBS may include MBS broadcast and MBS multicast. Wherein, the MBS broadcasting can be the transmission of MBS by broadcasting; MBS multicasting may be the transmission of MBS by multicast.

For MBS broadcast, no matter what RRC state the terminal device is in, the terminal device with the capability to receive MRB broadcast may or may not have an active version of SI, such as SIB20 and SIB 21.

For MBS broadcasts, SIB20 may carry cfr-ConfigMCCH-MTCH information. Wherein, CFR-ConfigMCCH-MTCH information can be used for configuring frequency domain resources of MBS broadcasting, and the frequency domain resources of MBS broadcasting can also be CFR used for MCCH receiving and MTCH receiving.

For MBS broadcast, the MCCH may carry MBSBroadcastConfiguration messages, which MBSBroadcastConfiguration messages may include MBS broadcast sessions provided in the cell and the associated scheduling information for those sessions. Optionally, the MBSBroadcastConfiguration message may also include a list of neighbor cells that provide the same broadcast MBS service as provided in the current cell. Configuration information required for the terminal device to receive the MCCH is provided in SIB 20. In addition, the system information provides information related to service continuity of MBS broadcasting in SIB 21.

3. Enhanced MBS transmission

When the bandwidth of the frequency domain resource of the MBS broadcast exceeds 20MHz, there may be a difference in the capabilities of different types of terminal devices, so that a class of terminal devices cannot support the frequency domain resource using the MBS broadcast, and thus the class of terminal devices cannot transmit the MBS broadcast.

It should be noted that, the transmission of the MBS broadcast according to the embodiment of the present application may be understood as the reception of the MBS broadcast or the transmission of the MBS broadcast. That is, the transmission according to the embodiment of the present application may be reception or transmission.

Based on this, in order to ensure that such terminal devices can perform MBS broadcast transmission, the embodiment of the present application introduces, for such terminal devices, first information, which may include information related to MBS broadcast supported by such terminal devices, and sends the first information to such terminal devices through a network device.

Thus, after receiving the first information, the terminal equipment can perform MBS broadcast transmission according to the first information, thereby enhancing MBS transmission through the first information and improving compatibility and stability of network transmission.

The technical scheme, beneficial effects, concepts and the like related to the embodiment of the application are specifically described below.

1. First-class terminal device and second-class terminal device

It should be noted that, when the bandwidth of the frequency domain resource of the MBS broadcast exceeds 20MHz, there may be a difference between the capabilities of different types of terminal devices, so that one type of terminal device may not support the frequency domain resource using the MBS broadcast, and another type of terminal device may support the frequency domain resource using the MBS broadcast, thereby causing that one type of terminal device may not perform transmission of the MBS broadcast, and another type of terminal device may perform transmission of the MBS broadcast.

For convenience of distinction and description, the embodiments of the present application introduce a first type of terminal device and a second type of terminal device in combination with the content in the foregoing "2, terminal device". Wherein the first type of terminal device and the second type of terminal device are terminal devices in nature, but have different capabilities in terms of the maximum bandwidth size supported. Of course, other terms may be used as well, which are not particularly limited.

Specifically, the maximum bandwidth that the first class of terminal equipment can support is 20MHz. Thus, when the bandwidth size of the frequency domain resource of the MBS broadcast configured by the SIB20 exceeds 20MHz, the first type terminal device may not support the frequency domain resource using the MBS broadcast.

Specifically, the maximum bandwidth that the second class of terminal devices can support is not limited to 20MHz. Thus, when the bandwidth size of the frequency domain resource of the MBS broadcast configured by the SIB20 exceeds 20MHz, the second class of terminal devices may still support the use of the frequency domain resource of the MBS broadcast.

In some possible implementations, the first type of terminal device may include a reduced capability terminal device (UE with reduced capability, redCap UE).

In some possible implementations, the second class of terminal devices may include terminal devices that fail to reduce capability (UE with non-reduced capability, non-RedCap UE).

In some possible implementations, the bandwidth size of the frequency domain resources of the MBS broadcast configured by the cfr-ConfigMCCH-MTCH information in SIB20 may or may not exceed 20MHz. Therefore, when the bandwidth size of the configured frequency domain resource of the MBS broadcast may exceed 20MHz, the first type of terminal equipment may not support MBS transmission using the frequency domain resource of the MBS broadcast, but the second type of terminal equipment may support MBS transmission using the frequency domain resource of the MBS broadcast.

2. First information

1) Description of the invention

In order to ensure that the first type of terminal equipment can perform transmission of MBS broadcasting, the embodiment of the application introduces first information for the first type of terminal equipment, wherein the first information can comprise information related to MBS broadcasting supported by the first type of terminal equipment.

Of course, the first information may be described in other terms, which are not particularly limited.

Note that the first information may be information other than cfr-ConfigMCCH-MTCH information in SIB 20.

2) The first information includes information

It should be noted that, the first information may include at least one of the following: MCCH configuration information, MBS broadcast configuration information, control resource set (Control Resource Set, CORESET) information, channel information, first indication information, second indication information, etc.

① MCCH configuration information

The MCCH configuration information may be used to configure the MCCH.

In some possible implementations, the MCCH configuration information may include at least one of: MCCT the length (length) and offset (offset) of the repetition period (MCCH repetition period), the duration (duration) of the MCCT transmission window, the starting time domain position of the MCCT transmission window.

② MBS broadcast configuration information

The MBS broadcast configuration information may be used to configure MBS broadcasts and may be carried by the MCCH.

In some possible implementations, the MBS broadcast configuration information may include at least one of: MBS sessions provided by MBS broadcasting in a current cell, configuration/scheduling information of each MBS session provided by MBS broadcasting in the current cell, a list of neighbor cells to the same MBS broadcasting service provided in the current cell, etc.

③ Controlling resource set information

The control resource set information may be used to indicate an additional common control resource set. The additional common set of control resources may be configured and used for search space MCCH (searchSpaceMCCH)/search space MTCH (searchSpaceMTCH) or terminal device specific search space (UE-SPECIFIC SEARCH SPACE) in a bandwidth part (BWP) configured SEARCHSPACEMCCH.

④ Channel information

The channel information may include PDSCH information of the MTCH and/or PDSCH information of the MCCH. Wherein, PDSCH information of the MTCH may be used to indicate PDSCH parameters for MTCH reception; PDSCH information of the MCCH may be used to indicate PDSCH parameters for MCCH reception.

⑤ First indication information

The first indication information may be used to indicate frequency domain resources of MBS broadcasting supported for use by the first class of terminal devices.

It should be noted that, the frequency domain resources of MBS broadcast supported by the first type of terminal equipment indicated by the first indication information may have the following two situations:

Case 1:

a. description of the invention

In "case 1", the network device may configure the frequency domain resources of MBS broadcasts supported for use by itself for the first type of terminal device alone, and indicate through the first indication information.

In this way, the first type of terminal equipment can acquire the frequency domain resource of the MBS broadcast according to the first indication information, and transmit the MBS broadcast according to the frequency domain resource of the MBS broadcast, thereby realizing the enhancement of MBS transmission.

B. Detailed description of the preferred embodiments

In some possible implementations, the network device may configure the starting frequency domain location and/or size (size) of the frequency domain resources of the MBS broadcast supported for use by the first class of terminal devices alone.

For example, the network device configures a starting physical resource block (Physical Resource Block, PRB) and a number of PRBs of frequency domain resources of the MBS broadcast.

Case 2:

a. description of the invention

In case 2, in order to ensure a communication process between the network device and the terminal device, the network device may configure various frequency domain resources for the terminal device through high-layer information/high-layer signaling/high-layer parameters, and the like.

In this regard, the network device may not need to configure the frequency domain resources of the MBS broadcast supported by the network device for the first type of terminal device alone, but may indicate, through the first indication information, which configured frequency domain resources may be used as the frequency domain resources of the MBS broadcast supported by the first type of terminal device.

In this way, by indicating which configured frequency domain resources are used as the frequency domain resources of the MBS broadcast, not only is the compatibility and flexibility of network transmission improved, but also the enhancement of MBS transmission is facilitated.

B. Detailed description of the preferred embodiments

In "case 2", there may be various ways, and these ways may be implementations in parallel to each other, implementations in association with each other, or combinations with each other to form new ways, which are not particularly limited.

Mode 1:

In some possible implementations, the frequency domain resources of the MBS broadcast supported for use by the first class of terminal devices may include one of the following:

CORESET, CORESET, initial DL BWP configured by SIB 1.

It may be appreciated that the network device may indicate one of the frequency domain resources of CORESET, CORESET, the initial DL BWP configured by SIB1, the frequency domain resources of the initial DL BWP configured by SIB1, etc. as the frequency domain resources of the MBS broadcast supported for use by the first type of terminal device.

Alternatively, the CORESET may include CORESET or CORESET with other indices. Wherein CORESET is taken as a frequency domain resource of MBS broadcast, which is easy to realize.

Alternatively, the CORESET frequency domain resources may include CORESET 0 frequency domain resources or CORESET frequency domain resources with other indices.

In addition, it should be noted that, hereinafter, the frequency domain resources of MBS broadcast according to the embodiment of the present application include CORESET, which can be understood that the frequency domain resources of MBS broadcast include CORESET.

Correspondingly, the frequency domain resources of the MBS broadcast include the initial DL BWP configured by SIB1, and it is understood that the frequency domain resources of the MBS broadcast include the frequency domain resources of the initial DL BWP configured by SIB1, and the frequency domain resources of the initial DL BWP configured by SIB1 are not particularly limited.

Mode 2:

when considering the situations of resource utilization efficiency, resource shortage, limited resource allocation, transmission requirement of terminal equipment, transmission capability of terminal equipment, and the like, the network equipment can flexibly indicate whether the frequency domain resource of the MBS broadcast supported by the first type of terminal equipment is shared with the frequency domain resource of the MBS broadcast supported by the second type of terminal equipment for the first type of terminal equipment and the second type of terminal equipment.

Therefore, the frequency domain resources of the MBS broadcast supported by the first type of terminal equipment and the frequency domain resources of the MBS broadcast supported by the second type of terminal equipment can be shared or not, thereby being beneficial to improving the flexibility and the reliability of network transmission.

The frequency domain resources of the MBS broadcast supported by the first type of terminal device and the frequency domain resources of the MBS broadcast supported by the second type of terminal device are shared, which can be understood that the first type of terminal device and the second type of terminal device share the same frequency domain resources of the MBS broadcast.

In some possible implementations, if the frequency domain resource of the MBS broadcast supported by the first type of terminal device is shared with the frequency domain resource of the MBS broadcast supported by the second type of terminal device, the frequency domain resource of the MBS broadcast supported by the first type of terminal device may include one of CORESET0, the frequency domain resource of CORESET, CORESET with other indexes, the frequency domain resource of CORESET with other indexes, and so on.

It may be appreciated that, in the case where the frequency domain resource of the MBS broadcast supported by the first type of terminal device is shared with the frequency domain resource of the MBS broadcast supported by the second type of terminal device, the network device may instruct one of CORESET 0, the frequency domain resource of CORESET, CORESET with other indexes, the frequency domain resource of CORESET with other indexes, and the like to be used as the frequency domain resource of the MBS broadcast supported by the first type of terminal device, which is easy to implement.

In some possible implementations, if the frequency domain resource of the MBS broadcast supported by the first type of terminal device is shared with the frequency domain resource of the MBS broadcast supported by the second type of terminal device, the frequency domain resource of the MBS broadcast supported by the first type of terminal device may include one of the following:

CORESET, CORESET frequency domain resources, initial DL BWP configured by SIB1, frequency domain resources of initial DL BWP configured by SIB 1.

Mode 3:

it should be noted that, the network device may indicate, through the same first indication information, both the frequency domain resource of the MBS broadcast supported by the first type of terminal device and the frequency domain resource of the MBS broadcast supported by the second type of terminal device. The frequency domain resource of the MBS broadcast supported by the first class of terminal devices and the frequency domain resource of the MBS broadcast supported by the second class of terminal devices may be the same or may not be the same, and may be determined specifically according to actual communication requirements.

In some possible implementations, if the same first indication information is used to indicate both the frequency domain resource of the MBS broadcast supported by the first type of terminal equipment and the frequency domain resource of the MBS broadcast supported by the second type of terminal equipment, the frequency domain resource of the MBS broadcast supported by the first type of terminal equipment includes one of CORESET a frequency domain resource of CORESET, CORESET a with other indexes, a frequency domain resource of CORESET a with other indexes, and so on.

It may be understood that, in the case that the frequency domain resource of the MBS broadcast supported by the first type of terminal device and the frequency domain resource of the MBS broadcast supported by the second type of terminal device are indicated by the first indication information at the same time, one of CORESET, the frequency domain resource of CORESET, CORESET with other indexes, the frequency domain resource of CORESET with other indexes, and the like is used as the frequency domain resource of the MBS broadcast supported by the first type of terminal device in a manner of network device indication/protocol definition/pre-configuration, and the like, which is easy to implement.

⑥ Second indication information

The second indication information may be used to indicate that the first type terminal device can use all or part of the remaining information except the resource configuration information in the SIB20, where the resource configuration information is used to configure the frequency domain resources of the MBS broadcast.

It should be noted that SIB20 may include other information for MBS broadcasting in addition to the resource configuration information. Although the first type terminal device cannot support the use of the frequency domain resources of the MBS broadcast configured by the resource configuration information in the SIB20, information required for the first type terminal device to perform the MBS broadcast may also be configured directly by the remaining whole or part of the information in the SIB20, and as to which information or information other than the resource configuration information in the SIB20 may be used by the first type terminal device, it may be indicated by the second indication information. Therefore, the configuration by other signaling alone is avoided, thereby being beneficial to saving signaling overhead and ensuring the compatibility of network transmission.

In some possible implementations, the other portion of information may include at least one of MCCH configuration information, MBS broadcast configuration information, control resource set information, channel information.

It should be noted that, the information mentioned in "① MCCH configuration information", "② MBS broadcast configuration information", "③ control resource set information" and "④ channel information" is configured by separate signaling, and the information in the other parts of information is in SIB 20. In this way, these information can be configured directly through SIB20 in order to save signaling overhead.

3) Transmission of first information

In the embodiment of the present application, in order to implement transmission of the first information, the first information may be carried by other System Information (SI) than SIB20, may be carried by higher layer signaling, may be carried by RRC signaling, and may be carried by MAC layer signaling (e.g., MAC CE). In this way, the embodiment of the application can flexibly transmit the first information according to the actual communication requirement.

In some possible implementations, the other system information may include SIB21 or newly defined system information, etc., so that the first information is transmitted by carrying the first information with SIB21 or newly defined system information.

3. An illustration of a multicast broadcast service transmission method

1) Description of the invention

In combination with the foregoing, an exemplary description is given below of a multicast broadcast service transmission method according to an embodiment of the present application. It should be noted that, the network device may be a chip, a chip module, a communication module, or the like, and the terminal device may be a chip, a chip module, a communication module, or the like. That is, the method is applied to a network device or a terminal device, which is not particularly limited.

As shown in fig. 2, a flow chart of a multicast broadcast service transmission method according to an embodiment of the present application specifically includes the following steps:

S210, the network equipment transmits first information, wherein the first information comprises information related to multicast broadcast service MBS broadcast supported by the first type terminal equipment.

The maximum bandwidth supported by the first type of terminal equipment is 20MHz.

Correspondingly, the terminal equipment receives the first information.

The terminal device may be a first type of terminal device.

S220, the network equipment sends MBS broadcasting according to the first information.

S230, the terminal equipment receives MBS broadcasting according to the first information.

It should be noted that, the details of the "first information", "first type terminal device", etc. are described in the foregoing, and are not repeated.

2) Some possible implementations

In combination with the foregoing, some possible implementations are described below, while others not described, which are detailed in the foregoing, and are not described herein.

In some possible implementations, the first information may include first indication information, which may be used to indicate frequency domain resources of MBS broadcasts supported for use by the first type of terminal equipment.

It should be noted that, in combination with the content in the "⑤ first indication information" described above, the network device may indicate, through the first indication information, a frequency domain resource of MBS broadcast supported by the first type of terminal device, so as to facilitate transmission of the MBS broadcast.

the control resource sets CORESET, CORESET, the initial downlink bandwidth part BWP configured by SIB1, the frequency domain resource of the initial DL BWP configured by SIB 1.

It should be noted that, in combination with the content of "case 2" in the "⑤ first indication information", the network device may indicate, through the first indication information, that one of the frequency domain resources of CORESET, CORESET, the initial DL BWP configured by SIB1, and the frequency domain resource of the initial DL BWP configured by SIB1 is used as the frequency domain resource of the MBS broadcast supported by the first type of terminal device, so as to use the configured frequency domain resource as the frequency domain resource of the MBS broadcast, which is not only beneficial to improving the compatibility and flexibility of network transmission, but also beneficial to implementing enhancement of MBS transmission.

In some possible implementations, the frequency domain resources of the MBS broadcast supported by the first type of terminal device may be shared with the frequency domain resources of the MBS broadcast supported by the second type of terminal device; or alternatively

The frequency domain resources of the MBS broadcast supported by the first type of terminal equipment and the frequency domain resources of the MBS broadcast supported by the second type of terminal equipment may not be shared.

It should be noted that, in combination with the content in "mode 2" of the "⑤ first indication information", when considering the situations of resource utilization efficiency, existence of resource shortage, limited resource allocation, transmission requirement of the terminal device, transmission capability of the terminal device, and the like, for the first type terminal device and the second type terminal device, the network device may flexibly indicate whether the frequency domain resource of the MBS broadcast supported by the first type terminal device and the frequency domain resource of the MBS broadcast supported by the second type terminal device are shared.

In some possible implementations, if the frequency domain resource of the MBS broadcast supported by the first type of terminal device is shared with the frequency domain resource of the MBS broadcast supported by the second type of terminal device, the frequency domain resource of the MBS broadcast supported by the first type of terminal device may include CORESET 0.

It should be noted that, in combination with the content in "mode 2" of the "⑤ first indication information", when the frequency domain resource of the MBS broadcast supported by the first type of terminal device is shared with the frequency domain resource of the MBS broadcast supported by the second type of terminal device, CORESET or CORESET with other indexes is used as the frequency domain resource of the MBS broadcast supported by the first type of terminal device in a network device indication/protocol definition/pre-configuration manner, which is easy to implement.

In some possible implementations, if the same first indication information is used to simultaneously indicate the frequency domain resources of the MBS broadcast supported by the first type of terminal equipment and the frequency domain resources of the MBS broadcast supported by the second type of terminal equipment

The frequency domain resources of the MBS broadcast supported for use by the first class of terminal equipment may include CORESET 0.

In addition, in combination with the content in "mode 3" in the "⑤ first indication information", when the frequency domain resource of the MBS broadcast supported by the first type terminal device and the frequency domain resource of the MBS broadcast supported by the second type terminal device are indicated by the first indication information, CORESET or CORESET with other indexes is used as the frequency domain resource of the MBS broadcast supported by the first type terminal device in a network device indication/protocol definition/pre-configuration manner, which is easy to implement.

In some possible implementations, the first information may include second indication information, which may be used to indicate that the first type of terminal device can use all or part of the remaining information in SIB20 except for the resource configuration information.

It should be noted that, in combination with the content in the "⑥ second indication information" described above, SIB20 may include other information for MBS broadcasting in addition to the resource configuration information. Although the first type terminal device cannot support the use of the frequency domain resources of the MBS broadcast configured by the resource configuration information in the SIB20, information required for the first type terminal device to perform the MBS broadcast may also be configured directly by the remaining whole or part of the information in the SIB20, and as to which information or information other than the resource configuration information in the SIB20 may be used by the first type terminal device, it may be indicated by the second indication information. Therefore, the configuration by other signaling alone is avoided, thereby being beneficial to saving signaling overhead and ensuring the compatibility of network transmission.

In some possible implementations, the remaining portion of information may include channel information, which may be used to indicate physical downlink shared channel PDSCH parameters for MBS traffic channel MTCH reception and/or to indicate PDSCH parameters for MBS control channel MCCH reception.

It should be noted that, in combination with the content in the "⑥ second indication information", the information mentioned in the "① MCCH configuration information", "② MBS broadcast configuration information", "③ control resource set information" and "④ channel information" is configured by separate signaling, and the information in the other part of the information is in SIB 20. In this way, these information can be configured directly through SIB20 in order to save signaling overhead.

In some possible implementations, the first information may be carried by other system information than SIB 20.

It should be noted that, in combination with the content in the "3) transmission of the first information", the embodiment of the present application may carry the first information through other system information except SIB20, so as to implement transmission of the first information.

In some possible implementations, the first information may be carried by SIB 20.

It should be noted that, in combination with the content in the "3) transmission of the first information", the embodiment of the present application may carry the first information through SIB20, so as to implement transmission of the first information.

In some possible implementations, the other system information may include SIB21.

It should be noted that, in combination with the content in the "3) transmission of the first information", the embodiment of the present application may carry the first information through SIB21, so as to implement transmission of the first information.

4. An illustration of a multicast broadcast service transmission device

1. Description of the invention

The foregoing description of the embodiments of the present application has been presented primarily from a method-side perspective. It will be appreciated that the terminal device or network device, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application can divide the functional units of the terminal equipment or the network equipment according to the method example. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, but only one logic function is divided, and another division manner may be adopted in actual implementation.

In the case of using integrated units, fig. 3 is a functional unit block diagram of a multicast broadcast service transmission apparatus according to an embodiment of the present application. The multicast broadcast service transmission apparatus 300 includes: a receiving unit 301.

In some possible implementations, the receiving unit 301 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.

In some possible implementations, the multicast broadcast service transmission apparatus 300 may further include a storage unit for storing computer program code or instructions executed by the multicast broadcast service transmission apparatus 300. The memory unit may be a memory.

In some possible implementations, the multicast broadcast service transmission apparatus 300 may be a chip or a chip module.

In some possible implementations, the receiving unit 301 may be integrated in other units.

For example, the receiving unit 301 may be integrated in a communication unit.

As another example, the receiving unit 301 may be integrated in a processing unit,

The communication unit may be a communication interface, a transceiver circuit, or the like.

The processing unit may be a processor or controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (DIGITAL SIGNAL processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable GATE ARRAY, FPGA), or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.

In some possible implementations, the receiving unit 301 is configured to perform any step performed by the terminal device/chip module, etc. in the above-described method embodiments, such as sending or receiving data, etc. The following is a detailed description.

In particular implementation, the receiving unit 301 is configured to perform any of the steps in the method embodiments described above, and when performing an action such as sending, optionally invoke other units to complete the corresponding operation. The following is a detailed description.

A receiving unit 301, configured to receive first information, where the first information includes information related to MBS broadcasting of a multicast broadcast service supported by a first type of terminal device; the maximum bandwidth supported by the first type of terminal equipment is 20MHz;

The receiving unit 301 is further configured to perform MBS broadcast reception according to the first information.

It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 3 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.

2. Some possible implementations

Some possible implementations are described below. Some specific descriptions may be found in the foregoing, and will not be repeated here.

control resource sets CORESET, CORESET 0, initial DL BWP configured by SIB1, and frequency domain resources of initial DL BWP configured by SIB 1.

It should be noted that, in combination with the content of "case 2" in the "⑤ first indication information", the network device may indicate, through the first indication information, that one of the frequency domain resources of CORESET 0, CORESET 0, the initial DL BWP configured by SIB1, and the frequency domain resource of the initial DL BWP configured by SIB1 is used as the frequency domain resource of the MBS broadcast supported by the first type of terminal device, so as to use the configured frequency domain resource as the frequency domain resource of the MBS broadcast, which is not only beneficial to improving the compatibility and flexibility of network transmission, but also beneficial to implementing enhancement of MBS transmission.

It should be noted that, in combination with the content of "mode 2" of the "⑤ first indication information" described above, when the frequency domain resource of the MBS broadcast supported by the first type of terminal device is shared with the frequency domain resource of the MBS broadcast supported by the second type of terminal device, the network device may indicate CORESET or CORESET with other indexes as the frequency domain resource of the MBS broadcast supported by the first type of terminal device, which is easy to implement.

In addition, in combination with the content of "mode 3" of the "⑤ first indication information", when the first indication information indicates both the frequency domain resource of the MBS broadcast supported by the first type of terminal device and the frequency domain resource of the MBS broadcast supported by the second type of terminal device, the network device may indicate CORESET or CORESET with other indexes as the frequency domain resource of the MBS broadcast supported by the first type of terminal device, which is easy to implement.

5. Yet another exemplary illustration of a multicast broadcast service delivery apparatus

In the case of using integrated units, fig. 4 is a functional unit block diagram of a multicast broadcast service transmission apparatus according to an embodiment of the present application. The multicast broadcast service transmission apparatus 400 includes: a transmitting unit 401.

In some possible implementations, the transmitting unit 401 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.

In some possible implementations, the multicast broadcast service transmission apparatus 400 may further include a storage unit for storing computer program code or instructions executed by the multicast broadcast service transmission apparatus 400. The memory unit may be a memory.

In some possible implementations, the multicast broadcast service transmission apparatus 400 may be a chip or a chip module.

In some possible implementations, the sending unit 401 may be integrated in other units.

For example, the transmitting unit 401 may be integrated in the communication unit. The communication unit may be a communication interface, a transceiver circuit, or the like.

For another example, the transmitting unit 401 may be integrated in the processing unit.

It should be noted that the processing unit may be a processor or a controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (DIGITAL SIGNAL processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable GATE ARRAY, FPGA), or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.

In some possible implementations, the sending unit 401 is configured to perform any step performed by the network device/chip module, etc. in the above-described method embodiments, such as sending or receiving data, etc. The following is a detailed description.

In particular implementation, the sending unit 401 is configured to perform any step in the method embodiments described above, and when performing an action such as sending, other units may be selectively called to complete the corresponding operation. The following is a detailed description.

A transmitting unit 401, configured to transmit first information, where the first information includes information related to MBS broadcasting of a multicast broadcast service supported by the first type of terminal device; the maximum bandwidth supported by the first type of terminal equipment is 20MHz;

the sending unit 401 is further configured to send MBS broadcast according to the first information.

It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 4 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.

2. Some possible implementations

6. Example illustration of terminal equipment

Referring to fig. 5, fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device 500 may include a processor 510, a memory 520, and a communication bus connecting the processor 510 and the memory 520.

In some possible implementations, memory 520 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or portable read-only memory (compact disc read-only memory, CD-ROM), memory 520 for storing program code and data for execution by terminal device 500.

In some possible implementations, the terminal device 500 also includes a communication interface for receiving and transmitting data.

In some possible implementations, the processor 510 may be one or more Central Processing Units (CPUs), which may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU) in the case where the processor 510 is one.

In some possible implementations, the processor 510 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.

In particular implementation, the processor 510 in the terminal device 500 is configured to execute the computer program or instructions 521 stored in the memory 520, and perform the following operations:

and receiving MBS broadcasting according to the first information.

It should be noted that, the specific implementation of each operation may be described in the above-illustrated method embodiment, and the terminal device 500 may be used to execute the above-illustrated method embodiment of the present application, which is not described herein.

2. Some possible implementations

7. An illustration of a network device

Referring to fig. 6, fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application. Wherein the network device 600 comprises a processor 610, a memory 620 and a communication bus for connecting the processor 610, the memory 620.

In some possible implementations, memory 620 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, which memory 620 is used to store related instructions and data.

In some possible implementations, the network device 600 also includes a communication interface for receiving and transmitting data.

In some possible implementations, the processor 610 may be one or more Central Processing Units (CPUs), which may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU) in the case where the processor 610 is one.

In some possible implementations, the processor 610 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.

In some possible implementations, the processor 610 in the network device 600 is configured to execute the computer program or instructions 621 stored in the memory 620 to perform the following operations:

And transmitting the MBS broadcast according to the first information.

It should be noted that, the specific implementation of each operation may be described in the above-illustrated method embodiment, and the network device 600 may be used to execute the above-illustrated method embodiment of the present application, which is not described herein.

2. Some possible implementations

In some possible implementations, the cfr-ConfigMCCH-MTCH information in SIB20 configures the bandwidth size of the frequency domain resources of MBS broadcast to be over 20MHz or not over 20MHz. Therefore, when the bandwidth size of the configured frequency domain resource of the MBS broadcast may exceed 20MHz, the first type of terminal equipment may not support MBS transmission using the frequency domain resource of the MBS broadcast, but the second type of terminal equipment may support MBS transmission using the frequency domain resource of the MBS broadcast.

8. Other related exemplary illustrations

In some possible implementations, the above-described method embodiments may be applied to or among terminal devices. That is, the execution body of the above-described method embodiment may be a terminal device, and may be a chip, a chip module, a module, or the like, which is not particularly limited.

In some possible implementations, the above-described method embodiments may be applied to or among network devices. That is, the execution body of the above-mentioned method embodiment may be a network device, and may be a chip, a chip module or a module, which is not limited in particular.

The embodiment of the application also provides a chip which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.

The embodiment of the application also provides a chip module, which comprises a receiving and transmitting assembly and a chip, wherein the chip comprises a processor, a memory and a computer program or instructions stored on the memory, and the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.

The embodiments of the present application also provide a computer-readable storage medium storing a computer program or instructions which, when executed, implement the steps described in the method embodiments above.

Embodiments of the present application also provide a computer program product comprising a computer program or instructions which, when executed, implement the steps described in the method embodiments above.

The embodiment of the application also provides a communication system which comprises the terminal equipment and the network equipment.

For the above embodiments, for simplicity of description, the same is denoted as a series of combinations of actions. It will be appreciated by persons skilled in the art that the application is not limited by the order of acts described, as some steps in embodiments of the application may be performed in other orders or concurrently. In addition, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts, steps, modules, or units, etc. that are described are not necessarily required by the embodiments of the application.

In the foregoing embodiments, the descriptions of the embodiments of the present application are emphasized, and in part, not described in detail in one embodiment, reference may be made to related descriptions of other embodiments.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, electrically Erasable EPROM (EEPROM), registers, hard disk, a removable disk, a compact disk read-only (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in a terminal device or a management device. The processor and the storage medium may reside as discrete components in a terminal device or management device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Drive (SSD)), or the like.

The respective apparatuses and the respective modules/units included in the products described in the above embodiments may be software modules/units, may be hardware modules/units, or may be partly software modules/units, and partly hardware modules/units. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least some modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the remaining (if any) part of modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal device, each module/unit included in the device may be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal device, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated within the terminal device, and the remaining (if any) some modules/units may be implemented in hardware such as a circuit.

The foregoing detailed description of the embodiments of the present application further illustrates the purposes, technical solutions and advantageous effects of the embodiments of the present application, and it should be understood that the foregoing description is only a specific implementation of the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

1. A method for transmitting multicast broadcast service, comprising:

And receiving MBS broadcasting according to the first information.

2. The method of claim 1, wherein the first information includes first indication information, the first indication information being used to indicate frequency domain resources of MBS broadcasts supported for use by the first type of terminal equipment.

3. The method according to claim 2, wherein the frequency domain resources of MBS broadcast supported by the first class of terminal equipment include one of the following:

Control resource sets CORESET, CORESET 0, the initial downlink bandwidth part DL BWP configured by SIB1, the frequency domain resource of the initial DL BWP configured by SIB 1.

4. The method according to claim 2, wherein the frequency domain resources of the MBS broadcast supported by the first type of terminal equipment are shared with the frequency domain resources of the MBS broadcast supported by the second type of terminal equipment; or alternatively

The frequency domain resources of the MBS broadcast supported by the first type of terminal equipment are not shared with the frequency domain resources of the MBS broadcast supported by the second type of terminal equipment;

Wherein, the maximum bandwidth supported by the second class of terminal equipment is not limited to 20MHz.

5. The method of claim 4, wherein the frequency domain resources of the MBS broadcast supported by the first type of terminal equipment include CORESET 0 if the frequency domain resources of the MBS broadcast supported by the first type of terminal equipment are shared with the frequency domain resources of the MBS broadcast supported by the second type of terminal equipment.

6. The method of claim 2, wherein if the same first indication information is used to simultaneously indicate frequency domain resources of MBS broadcasts supported by the first type of terminal equipment and frequency domain resources of MBS broadcasts supported by the second type of terminal equipment

The frequency domain resources of the MBS broadcast supported by the first type of terminal equipment comprise CORESET 0;

7. The method of claim 1, wherein the first information includes second indication information for indicating that the first type of terminal device can use all or part of the remaining information except for resource configuration information in SIB20 for configuring frequency domain resources of MBS broadcasting.

8. The method of claim 7, wherein the remaining portion information comprises channel information indicating physical downlink shared channel, PDSCH, parameters for MBS traffic channel, MTCH, reception and/or PDSCH parameters for MBS control channel, MCCH, reception.

9. The method of claim 1, wherein the first information is carried by other system information than a system information block SIB20 or by SIB 20.

10. The method of claim 9, wherein the other system information comprises SIB21.

11. A method for transmitting multicast broadcast service, comprising:

and transmitting MBS broadcasting according to the first information.

12. The method of claim 11, wherein the first information comprises first indication information, the first indication information being used to indicate frequency domain resources of MBS broadcasts supported for use by the first type of terminal equipment.

13. The method of claim 12, wherein the frequency domain resources of MBS broadcasts supported for use by the first class of terminal devices comprise one of:

14. The method of claim 12, wherein the frequency domain resources of the MBS broadcast supported by the first class of terminal devices are shared with the frequency domain resources of the MBS broadcast supported by the second class of terminal devices; or alternatively

15. The method of claim 14, wherein the frequency domain resources of the MBS broadcast supported by the first type of terminal equipment include CORESET 0 if the frequency domain resources of the MBS broadcast supported by the first type of terminal equipment are shared with the frequency domain resources of the MBS broadcast supported by the second type of terminal equipment.

16. The method of claim 12, wherein if the same first indication information is used to simultaneously indicate frequency domain resources of MBS broadcasts supported by the first type of terminal equipment and frequency domain resources of MBS broadcasts supported by a second type of terminal equipment

17. The method according to claim 11, wherein the first information includes second indication information for indicating that the first type of terminal device can use all or part of the remaining information except for resource configuration information in SIB20 for configuring frequency domain resources of MBS broadcasting.

18. The method of claim 17, wherein the remaining portion information includes channel information for providing parameters required for PDSCH reception of a physical downlink shared channel for an MBS traffic channel MTCH.

19. The method of claim 11, wherein the first information is carried by other system information than a system information block SIB20 or by SIB 20.

20. The method of claim 19, wherein the other system information comprises SIB21.

21. A multicast broadcast service transmission apparatus, comprising:

22. A multicast broadcast service transmission apparatus, comprising:

23. A terminal device comprising a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to carry out the steps of the method according to any one of claims 1-10.

24. A network device comprising a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to implement the steps of the method of any one of claims 11-20.

25. A chip comprising a processor and a communication interface, wherein the processor performs the steps of the method of any of claims 1-10 or 11-20.

26. A computer readable storage medium, characterized in that it stores a computer program or instructions which, when executed, implement the steps of the method of any one of claims 1-10 or 11-20.